When rebuilding your motor, you want to have the best components to ensure for reliability while delivering optimum performance. Cosworth's piston rings have been developed using the latest cutting edge technology along with careful manufacturing methods.

These particular piston rings feature a tungsten coated stainless steel top ring with increased ring tension to help reduce blow-by with increased engine speed and combustion pressure. These are perfect piston rings for those who may partake in endurance or competitive driving to have a ring strong enough to sustain such events.

Cosworth piston rings are designed specifically to match Cosworth pistons.